A 1.8V, sub-mW, over 100% locking range, divide-by-3 and 7 complementary-injection-locked 4 GHz frequency divider
A 1.8V, sub-mW, over 100% locking range, divide-by-3 and 7 complementary-injection-locked 4 GHz frequency divider
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DOI：
10.1109/cicc.2009.5280853
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发表时间：
2009-10
期刊：
影响因子：
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通讯作者：
Yung-Chung Lo;Hsien-Pu Chen;J. Silva-Martínez;S. Hoyos
中科院分区：
文献类型：
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作者：
Yung-Chung Lo;Hsien-Pu Chen;J. Silva-Martínez;S. Hoyos
提出了一种基于低功耗奇比环振荡器的互补注入锁频分频器。多输入互补注入方案将其锁定范围扩大到100%以上，以充分覆盖PVT变化。CILFD只消耗动态功率，对于较大的分割比没有额外的功率惩罚。差分输入输出采用辅助交叉连接逆变器实现。分割比为3和7的cilfd采用0.18µm CMOS技术实现。测量结果表明，锁频范围为1.4 ~ 4.4 GHz，输入入射功率为−4 dBm。当锁定在4.7 GHz时，单个1.8 v电源的功耗为0.9 mW。
A low-power wideband divide-by-odd-ratio ring-oscillator-based complementary-injection-locked frequency divider (CILFD) is proposed. The multiple-input complementary-injection scheme widens its locking range over 100% to sufficiently cover the PVT variations. The CILFD consumes dynamic power only with no additional power penalty for larger division ratios. The differential input and output are realized employing auxiliary cross-connected inverters. The CILFDs with division ratios of 3 and 7 are implemented in a 0.18 µm CMOS technology. The measurement results show a locking range from 1.4 to 4.4 GHz with an input incident power of −4 dBm. The power consumption while locked at 4.7 GHz is 0.9 mW from a single 1.8-V power supply.